For an extension based on marriage, do my wife and I have to be residing where she is registered in the blue book? We live in a condo but my wife has a house where she is registered.
TLDR : Answer Summary
When extending a visa based on marriage in Thailand, it's not required to reside where your wife's blue book registration is. What's most important is to have a TM30 filed, indicating your residence in the area of the immigration office you are applying to. Immigration officers may want evidence that you are living together, such as photos or testimonies from neighbors.